NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
20
Figure 36:- Horizontal Termination with Two 90° Elbows
Figure 35: Horizontal Termination with One 90° Elbow
Figure 37: Horizontal Termination with Three 90° Elbows
V
H
H 1
V 1
Vertical firestop/Spacer
u
Horizontal
Termination
Horizontal firestop/
Spacer
u
V
H
H
1
Horizontal
Termination
Vertical firestop/
Spacer
u
Horizontal firestop/
Spacer
u
TyPICAL HORIZONTAL
TERMINATION SySTEMS
Note: Building codes limit or
prohibit horizontal termination
in specific areas. for location
guidelines, see
Page 22
.
• Typical horizontal termination systems are
shown in
Figures 35, 36, and 27
.
• Select the vent design that matches your
requirements and make sure the vent run
conforms to the rise-to-run ratios listed in
Table 8
.
• If the parameters of your vent run fall
outside the parameters described herein,
consider installing the Power Vent kit. See
manual 506022-01 (available for download
from www.LennoxHearthProducts.com
[>Owners Resources>Product Literature],
or ask your dealer or distributor for more
information).
• See the “VENTING INSTALLATION” section
on
Pages 13–17
for additional details.
__________
u
Vertical firestop/Spacer must be used
anywhere vent pipe passes through a
combustible floor or ceiling.
.25
Horizontal firestop/Spacer must be used
anywhere vent pipe passes through a
combustible wall.
.25
For further details, see “Firestop/Spacer
Requirements” on
Page 13.
Install the provided Vent Restrictor, if
required
(see
Page 16
)
.
A 90° elbow may NOT be attached di-
rectly to the appliance collar. A minimum
of 6" pipe (RHAP54) or 12" (RHAP42)
must be used between the fireplace col-
lar and a 90° elbow. For more details, see
“Elbows” on
Page 14.
V
H
Horizontal
Termination
Horizontal firestop/
Spacer
u
Vertical firestop/
Spacer
u
LENNOX HEARTH PRODUCTS • RHAPSODY™ LINEAR DIRECT-VENT GAS FIREPLACES (MODELS RHAP42N & RHAP54N) • INSTALLATION INSTRUCTIONS
HORIZONTAL
TERMINATION SySTEMS
HORIZONTAL TERMINATION
SySTEM RISE-TO-RUN RATIOS
Max. Total H
Min. Total V
feet
(meters)
feet
(meters)
2
(0.610)
1
(0.305)
4.5
(1.372)
3
(0.914)
6
(1.829)
4
(1.220)
7.5
(2.286)
5
(1.524)
9
(2.743)
6
(1.729)
15
(4.572)
10
(3.048)
Total H = 15 ft (4.572 m) max.
Total H + Total V = 60 ft (18.3 m) max.
Example:
15 ft total Horizontal vent run requires
a min. of 10 ft total Vertical vent.
Table 8